but she's certainly not the first woman to fall head over heels. see "sex and the city." remember carrie bradshaw's catwalk tumble? >> oh, my god. she's fashion roadkill. >> reporter: runways are littered with roadkill. wobbles, tumbles and wipeouts. at heathrow airport, lady gaga showed she wasn't the practical, rolling luggage type, and ended up rolling her ankles. but for the rest of us, why do we bother when we know it can end like this? the man behind those skyscraping red soles, christian louboutin, explained it to me like this. >> some women are not completely comfortable with their body. and even if you're not really comfortable with your body, you are comfortable with your feet. >> reporter: at the time, i was six months pregnant, so he proved it to me. hello, lovers! i think i just lost five pounds and ten years. fabulous. when you're talking seven-inch heels, practicality really isn't the point. >> i don't want these shoes to be comfortable shoes. >> reporter: they're not going to be birkenstocks. >> exactly. >> reporter: but with those higher heels comes highe